Proposed high altitude manned Vostok flight for extended scientific studies. Spacecraft would have been allowed to naturally decay to a re-entry after ten days. Purposes of these flights were to be: geophysical and astronomical research; photography of the solar corona; solar x-ray imagery; medical-biological research; detailed study of the effects of weightlessness on the human organism; dosimetry; and engineering tests of ion flow sensors to be used for orientation of later Soyuz spacecraft. All follow-on Vostok missions cancelled in Spring 1964.

Voskhod 3 - - 1966 June - Assignment: Proposed Backup Crew.

Planned duration 19 days. Biological endurance mission cancelled after near-disaster with Voskhod 2. Initial Orbit was to have been 175 km X 500 km at 65 deg. Follow-on missions with journalist, physician, and all-female crews also cancelled. Original Prime Crew was Katys, Volynov; Backup Crew: Beregovoi, Demin; Support Crew: Artyukhin, Shatalov. These assignments were reshuffled to those shown when Katys had to be dropped from the prime crew.

Voskhod 4 - - 1967 Autumn - Assignment: Proposed Prime Crew.

Planned second long-duration 20 day Voskhod flight. Cancelled in spring 1966 after near-disaster with Voskhod 2 and death of Korolev. A follow-on Voskhod 3V s/n 7 mission was also planned that would have conducted an artificial gravity experiment, unreeling a tether between the Voskhod spacecraft and the Block I final rocket stage.

Second manned Soyuz flight. Rendezvoused with the unmanned Soyuz 2 but failed to dock. Complex testing of spaceship systems; development, in joint flight with space ship Soyuz 2 of processes of space ship manoeuvring and docking in artificial earth satellite orbit; development of elements of celestial navigation; conduct of research under space flight conditions. The failed docking was blamed on manual control of the Soyuz by Beregovoi, who repeatedly put the spacecraft in an orientation that nulled the automatic docking system. Beregovoi used nearly all of his orientation fuel in his first attempt to dock - of 80 kg allocated, only 8 to 10 kg was remaining. Recovered October 30, 1968 7:25 GMT.